Hi. I've installed GHC 6.2, but trying to compile a simple HelloWindow.hs program fails. The same code runs with Hugs. Both installs are lastest .msi import Graphics.UI.GLUT import Graphics.Rendering.OpenGL main = do getArgsAndInitialize createAWindow "Hello Window" mainLoop createAWindow windowName = do createWindow windowName displayCallback $= clear [ColorBuffer] H:\Documents and Settings\manuel>ghc -package GLUT -o HelloWindow HelloWindow.hs compilation IS NOT required H:/ghc/ghc-6.2/libHSGLUT.a(Window__53.o)(.text+0x85):ghc14736.hc: undefined reference to `glutCreateWindow@4' H:/ghc/ghc-6.2/libHSGLUT.a(Registration__78.o)(.text+0x3ec):ghc10876.hc: undefined reference to `glutGetWindow@0' H:/ghc/ghc-6.2/libHSGLUT.a(Window__10.o)(.text+0x63):ghc11416.hc: undefined reference to `glutDisplayFunc@4' H:/ghc/ghc-6.2/libHSGLUT.a(Initialization__158.o)(.text+0x123):ghc16024.hc: undefined reference to `glutInit@8' H:/ghc/ghc-6.2/libHSGLUT.a(Begin__2.o)(.text+0x54):ghc15656.hc: undefined reference to `glutMainLoop@0' H:/ghc/ghc-6.2/libHSGLUT.a(Registration__38.o)(.text+0x69):ghc10876.hc: undefined reference to `glutTimerFunc@12' H:\Documents and Settings\manuel>ghci HelloWindow.hs ___ ___ _ / _ \ /\ /\/ __(_) / /_\// /_/ / / | | GHC Interactive, version 6.2, for Haskell 98. / /_\\/ __ / /___| | http://www.haskell.org/ghc/ \____/\/ /_/\____/|_| Type :? for help. Loading package base ... linking ... done. Skipping Main ( HelloWindow.hs, HelloWindow.o ) Ok, modules loaded: Main. Prelude Main> main Loading package OpenGL ... linking ... done. Loading package GLUT ... linking ... H:/ghc/ghc-6.2/HSGLUT.o: unknown symbol `_glutMainLoop' ghc.exe: panic! (the `impossible' happened, GHC version 6.2): can't load package `GLUT' Please report it as a compiler bug to glasgow-haskell-bugs@haskell.org, or http://sourceforge.net/projects/ghc/. Thanks. _______________________________________________________________ Yahoo! Sorteos ¡Ya puedes comprar Lotería de Navidad! http://yahoo.ventura24.es/